Resealed IP not pumping any fuel?

[jhax]

Libby what info have you on this lift pump? I'm gonna take it all apart and put it all back together. If it doesn't work I'll look into it. Thanks.

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[jhax]

Update...upon removing the hard lines to the injectors I noticed that 3 & 4 were moist. So I said why not and decided to try to crank it with the lines off. I placed the return line in a bottle held it at wot and had my father crank. While no fuel came out of the pump head fuel did pump from the return line (one nipple banjo) into the bottle. Fuel also moved through the supply line from the tank through the fuel filter and into the injection pump. We proceeded to do this three times with positive results (fuel pumping into feed banjo). So should I still test the fuel shutoff solenoid at this point? Before testing the solenoid should I put the two nipple banjo on and hook up the return lines? What do?

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[jhax]

PS can the return line be plugged so upon cranking fuel is forced into the individual nozzles on the pump head (path of least resistance so to speak).

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[ORCoaster]

While no fuel came out of the pump head fuel did pump from the return line (one nipple banjo) into the bottle. 

I am confused here, you should have the two nipple banjo on the OUT at this point.  It has a restriction in it that allows the pump to build up internal pressure.  So if you have that on you should get pressure to the back side of the pump and out to the injectors.  Extra fuel then goes to the pump via the return lines. 

Sounds like you are almost there.

[TylerDurden]

Ja, I would take the plunger out of the cutoff solenoid.

[jhax]

The reason for the one nipple on the return was to get it as free flowing as possible so we can make sure fuel was pumping into the feed line. I will proceed to replace the one nipple bolt with the two nipple bolt and update you on the progress. Would it be wise to suck on the return line going to the tank so it fills up to the end with fuel and plug it into the banjo bolt so it creates some sort of vacuum. After its filled plug it to the two nipple banjo and screw it into the top of the IP.

[ORCoaster]

I would swap the banjos and try it as it is.  If no bark, or clack in this case then spend time on the solenoid.  I think you are that close.  Wet 3&4 to me means something was sneaking in the pump at low pressure and that the solenoid is working just as it should.  

Call me an optimist.  

[ORCoaster]

Just stick the return line on it and forget sucking fuel up to the pump.  It tastes terrible if you don't see it coming through the black rubber hose.  Don't ask how we know these things.

[jhax]

Trust me sir, I didnt get the green tygon just for high temperature tolerance and flexibility. Plus I have drank my fair share of diesel in the past few days. I like to keep my internals nice and lubed up.

[TylerDurden]

Jus, you are correct about fuel in the return line drawing a slight pull... but, I usually just pull the fuel through the IP and quickly put the return line back on and crank.

[ORCoaster]

Good that you got the green line.  Bad that you are still lubing the internals.  One must stop the vacuum when you see the fluid.  Elsewise it is phhtt phhhttt phhhttt. 

[jhax]

No fuel coming out of distributer head plungers with solenoid out.

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[jhax]

There is absolutely no pressure of any kind coming out of those nozzles while cranking. The solenoid reservoir was full of diesel when we took it out.

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[ORCoaster]

By OUT you mean you removed the plunger and spring and then put the rest back on correct?  You would have fuel spitting all over otherwise.  

If you do indeed have the body of the solenoid reattached and you are still not getting it out the delivery valves or the top of the injectors at the lines then I think that you do have vane stickage going on.  They should be free to move from the center of the shaft to the outside of the slot and touch the body of the IP.  I think you asked about them moving one way or another when looking down the barrel of the pump.  They need to be free to slide sideways.  

But you did have delivery of fuel out the line that would have been going to the tank already did you not?  Sucking it in from the filter and then out the line to the tank?

[TylerDurden]

Even with poor lift pump, the HP head should spit some fuel until air gets into the HP head.

...I was tightening down the distributor head and did not have the little ball on the bottom of the tension lever set inside the hole on the side of the collar that sits on the shaft, I rested the the little ball on the front of the collar and tried to tension the distributor head down and the tension from the plunger return springs snapped the link element in half.

Back when this happened, the nubbin on the end of the lever might have gotten bent, such that the collar will always spill fuel.